Cop winding



Oct. 30, 1934. i E. E. 'WINKLEY 1,978,350

COP WINDING Filed Feb. 15. 1950 4 Sheets-Sheet 1 Oct. 30,1934. I E. ESWI NKLEY 0 COP WINDING Filed Feb. 13, 1930 4 Shee' IPS-Sheet 2 E. E.WINKLEY Oct. 30, 1934.

coP WINDING 4 Sheets-Sheet 5 Filed Feb. 13. 1930 may.

Oct. 30, 1934. w WINKLEY 1,978,850

' coP WINDING Filed Feb. 13, 1930 4 Sheet-Sheet- 4 Patented Oct. 30,1934 PATENT OFFICE COP WINDING Erastus E. Winkley, Lynn, Mass assignorto United Shoe Machinery Corporation, Paterson, N. J., a corporation ofNew Jersey Application February 13, 1930, Serial No. 428,084

12 Claims.

The present invention has relation in general to the winding of thread,and in particular to the operation of winding thread into self-sustaining packages known as cops, which are used for various purposes,as for example in the shuttles of lock-stitch sewing machines in placeof the older form of supply wound on bobbins and requiring to be mountedwith capacity for rotation with respect to the shuttle in order topermit delivery of -the thread from the bobbin. In the case of thecop-wound supply of thread, the thread is drawn off endwise from thecop, usually from the interior, without resulting rotation of the cop.This form of delivery puts into the thread delivered one turn of twistfor each convolution unwound from the cop, which twist tends to causetrouble in many ways, as by causing the stranding or kinking of. thethread, and

through accumulating and then forcing its way 20 through the tensiondevices causing wide fluctuations in the tension injuriously ailectingthe strength and appearance of the finished seam.

The main object of the present invention is to provide a novel andimproved cop, and method and apparatus for winding the same which shallprovide a reverse or compensating twist in the thread as it is woundinto the cop, in properly proportioned amount such that-the thread willbe delivered on unwinding from one end of the cop in'straight andbalanced relation.

To this end, the invention consists in the method, devices,combinations, and arrangement of parts hereinafter described andclaimed, which, together with the advantages to be obtained thereby,will be readily understood by one skilled in the art from the followingdescription, taken in connection with the accompanying drawings showingan illustrative embodiment of the invention.

In the drawings, Fig. 1 is a front elevation of the improved cop winder;Fig. 2 is a side elevation of the same; Fig, 3 is a side elevation on alarger scale of the revolving wax pot and the support for the threadsupply in connection therewith, certain portions being broken away; Fig.4 is a view of the wax pot and support of Fig. 3, viewed from adirection at 90 degrees from that of Fig.3, shown partly in section online 4-4 of Fig. 3; Fig. 5 is a front view and Fig. 6 a side view of thewinding head, including the winding spindle and the traversing guide;and Fig. '7 is a plan view of the driving devices and transmission ofthe machine with the wax pot removed and the standard supporting thehead also broken away.

Having reference to the drawings, the cop is wound upon the taperedextremity 2 of a positively driven spindle 4 mounted in bearings at theupper end of a standard 6 and driven by a shaft 8 rotating within thestandard through 30 beveled gears 10 housed at 12 at the top of thestandard. This shaft 8 is driven by power from a suitable source appliedtothe short shaft 14 by means of a pulley 16 fixed thereon andtransmitted through a clutch 18 to the shaft 20 separate 5 from andaxially aligned with the shaft 14. This shaft 20 is provided with a worm22 positioned between the two bearings 24 and 26, which meshes -with aworm gear 28 to drive the latter and the spur gear 30 formed integrallytherewith and rotatably mounted on a vertical stud 32 fixed in the gearbox 34, the spur gear 30 serving to drive the gear 36 fixed on the lowerend of the shaft 8. The movable member of the clutch 18 is splined tothe shaft 20 and brought into driving engagement with the opposingclutch member by the pressure of a spring 38' which is compressed whenthe sliding collar 40 splined on the shaft is moved in the direction ofthe clutch by movement of the yoke 42 that is fixed on a short so shaft44 which extends out through the side of the gear box and is provided atits outer end with a lever 46 whereby the clutch can be operatedmanually to start the winding operation. The thread is guided onto theend 2 of the spindle 4, slotted to hold the end of the thread, by meansof a traversing guide in the form of an arm 48 having a pigtail guideeye 50 fixed on the end thereof, the arm being pivoted at 52 within ayoke 54, the shank 56 of which is rotatably mounted in a bearing inconnection with the frame 58 of the winding head and receives a rockingmovement of slight-amplitude through the beveled gears 60 and the rockshaft 62. The rock shaft 62 extends down through a guide 64 inconnection with the gearbox into the interior of the latter, where it isprovided with an arm 66 having a cam follower 68 which is caused tofollow the periphery of a cam '10 on the hub of the worm gear 28 bymeans of a hollow plunger 10 72 slidably mounted in a guide 74 inconnection with the gear box and pressed against the arm 66 by means ofa spring '76 which has a tension adjustment in the form of a set screw78 threaded into the enlarged portion of the passage 105 through theguide 74 and secured by lock nut 80. The traversing movement thusimparted by cam to the guide eye 50 lays the thread onto the spindleafter the familiar quick-traverse manner, to form a cop with thewell-known self-sustaining wind. The arm 48 is pressed yieldinglyagainst the spindle by means of a spring 82, so that as the copincreases in diameter, the arm moves outwardly away from the spindle topermit such growth. The position of the guideeye pressing against thecop as the latter grows, controls the winding-on of the thread closely,and also helps to compact the cop. One side of the cop as it is built upis controlled by the ad- Jacent surface of the lug 84 which is a fixedpart of the frame 58 of the head while the free end of the spindle iscovered by a swinging plate 86 which confines the cop at the oppositeside during the winding, and after the completion of the winding isswung outwardly about its pivot in 88 against the compression of a smallspring 90 to permit the finished cop to be slipped off the spindle andremoved.

Means is provided for automatically stopp the winding when the cop hasreached a predetermined diameter. This is effected by means of a feeler92 in the shape of a lever pivoted at 94 on the frame of the head andconnected at 96 with a link 98 which extends down through the gear boxand is connected at 100 to a detent 102 pivoted at 104 to the bottom ofthe gear box and adapted to engage a finger 106, integral with the yoke42 controlling the clutch and extending down through a slot in thebottom of the gear "box, to hold the clutch in engagement and themachine in winding relation. When the cop has attained the predetermineddiameter, its periphery forces the feeler 92 away from the spindle,pulls the detent 102 out of engagement with the finger 106, releasingthe yoke, and the recoil of the spring 38 together with the push of aspring plunger 1'70 bearing against a second finger 172 in connectionwith the yoke 42, thrusts the collar 40 in a direction away from theclutch to disengage the clutch and stop the winding. The collar bringsup against a leather washer 41 resting against the side of the bearing26, to cushion the shock of recoil induced by spring 38, and to act as abrake to check rotation as the collar is held against it by the actionof spring plunger 170. The spring 38 reaches the limit of its expansionbefore the collar reaches the leather washer.

The reverse twist is put in by rotating the wound mass of threadconstituting the supply upon an axis at right angles to that of suchwound mass. By such rotation, the insertion of one turn of reverse twistfor each convolution of the thread wound into the cop is easilyaccomplished. It is desirable to wax the thread forming the cop, both toimprove the quality of the seam formed from such thread and to make thecop itself more rigid and cause it to retain its form better, and wherethis waxing of the thread has not already been accomplished before thesupply thread is wound, it is most satisfactorily performed after thethread leaves the wound mass 110 constituting the supply, and before itis wound into the cop.

Thus in the present embodiment, the wound mass of supply thread ismounted on a horizontal axis formed by the spindle 112 received inbearings 114 on the cover 122 of the wax pot 116, and the whole wax potis rotated on avertical axis so as to put the reverse twist into thethread. When necessary to efi'ect the waxing at this stage, the threaddrawn oil from the wound mass 110 is passed down into the wax pot andthrough the guide eye 118 at the lower end of arm 120 in connection withthe cover 122 of the wax pot, and after passing through the molten waxcontained in the pot, travels through a stripper 124, over a truck 128and through the tension device 128, of familiar form and construction,and thence to the guide eye 50 which directs it onto the end 2 of thewinding spindle. The thread leads from the tension device to the guideeye 50 substantially in the vertical axis of rotation of the support forthe supply thread.

While the thread is travelling-along this path, the whole wax pot,together with the support for the wound mass 110 of supply thread, isbeing rotated about its vertical axis one turn for each revolution ofthe winding spindle 4. This motion is derived from the spur gear 30through the gear 130 meshing therewith, the latter being of the samesize'as the gear 36 which drives the winding spindle, and fixed upon ashort shaft 132 which has a flange 134 seated in the top surface of ,thegear box 34 and a half-round continuation 136 which acts as a drivingkey through its engagement with a corresponding half-round section 138which is pinned at 140 within the circular bore of a sleeve 142extending downward axially at the center of the hollow base 144 of thewax pot. The depending rim of this hollow base rests upon the top of thegear box 34 at 146 and when the gear 130 is rotated, the wax pot alsorotates while its weight is supported by such rim at'142.

To provide for keeping the wax within the wax pot in proper moltencondition, heat is supplied to the interior of the wax pot, as itrotates, by means of housings 148 equipped with radiating flanges 150and containing electric heating units 152, the terminals of which arerespectively connected to slip-rings 154, 156, of different diameter,mounted upon circular plates of insulating material 158, and caused toturn in unison with the wax pot by reason of the pin 160 and the collar162 fixed to the sleeve 142 by a clamping screw 164. Spring-pressedbrushes 166, 168 bear against the respective slip-rings 154, 156, andcarry electrical current from suitable source to energize the heatingunits. By this arrangement, current is fed continuously to the heatingunits within the wax pot while the latter is in rotation.

In the event that the supply thread has been previously prepared withwax or lubricant, the lead of the thread through the wax pot is omitted,and the thread is carried directly to the truck 126 and thence throughthe tension to the winding spindle.

Whatds claimed as the invention is:

1. 'A cap winder having, in combination, a winding spindle, a wax potmounted for rotation, a support for a wound mass of supply thread inconnection with the wax pot, and means for rotating the wax pot toimpart one turn of twist to the supply thread for each revolution of thewinding spindle in a direction to neutralize the twist resulting fromdrawing thread axially from the completed cop.

2. A cop winder having, in combination, a winding spindle, a wax pot, atension device, means for supporting a wound mass of supply thread, andmeans for imparting one turn of twist to the supply thread between thetension device and the winding spindle for every revolution of suchwinding spindle in a direction to-neutralize the twist resulting fromthe drawing thread axially from the completed cop.

3. The method of Winding self-sustaining cops for wax thread sewingmachines consisting in impregnating the thread with wax and before thewax has set winding the thread into a cop and imparting to the threadone turn of twist for each convolution of thread going into the makingof the cop in a. direction to neutralize the twist resulting fromdrawing thread axially from the completed cop.

4. A cop winder having, in combination, a winding spindle, a wax pot, asupport for a wound mass of supply thread, means for imparting one turnof twist to the thread for each convolution thereof wound into the cop,actuating means for these instrumentalities, and means actingautomatically to suspend the actuation when the cop has attained apredetermined size.

5. A cop winder having, in combination, winding means adapted to buildthe cop, a support for a wound mass of supply thread, and means forimparting to the thread one turn of twist for each convolution thereofwound into the cop in a direction to neutralize the twist resulting fromdrawing thread axially from the completed cop.

6. A cop winder having, in combination, a winding spindle, positivedriving means therefor, a wax pot rotatably mounted and adapted to berevolved turn for turn with the spindle through positive connectionswith the driving means, supporting means for a wound mass of supplythread upon the wax pot, and means for automatically suspending theoperation of the driving means when the cop attains a predeterminedsize.

'7. A cop winder having, in combination, a winding spindle, a wax pot, asupport for a wound mass of supply thread upon the wax pot, means forrotating the wax pot and the support to impart one turn of twist to thethread for each convolution wound onto the cop in a direction toneutralize the twist resulting from drawing thread axially from thecompleted cop, heating units in connection with the wax pot, and meansfor supplying a heating agency to such units while the wax pot isrotated. v

8. A cop winder having, in combination, winding devices including aspindle, means for supporting a wound mass of supply thread, and meansfor relatively rotating the mass of supply thread and the spindle toimpart one turn of twist to the supply thread for each revolution of thespindle in a direction to neutralize the CERTIFICATE Patent No. l, 978,850.

twist resulting from drawing thread axially from the completed cop.

9. A machine for forming thread packages having, in combination, meansincluding a spindle for winding a self-sustaining cop of thread. meansfor supporting a wound supply of thread to revolve about an axisconcentricto that about which the supply is wound and also to revolveabout an axis disposed at an angle to that of the supply, andconnections between the winding spindle and the thread supporting meansfor revolving uniformly the supply of thread about the angularlydisposed axis one turn for each complete rotation of the spindle.

10. A machine for forming thread packages having, in combination, aspindle for winding a cop of thread, means for supporting a supply ofthread, a thread guide for quickly traversing the thread as it is woundon the spindle to render the cop self-supporting, a thread tensiondevice and means for imparting uniformly 3/360" twist.

to the thread extending between the winding means and the thread tensiondevice for each complete rotation of the spindle, said thread guidebeing pressed resiliently against the spindle to compress the threadagainst the cop during winding.

11. A machine for forming thread packages having, in combination, meansincluding a spindle for winding a self-sustaining cop of thread, arotary shaft for supporting a supply of thread arranged relative to thespindle to produce a twist in the thread when rotated, an electricallyheated wax pot mounted to rotate with said shaft, and electricalconnections to the wax pct.

12. A machine for forming thread packages having, in combination, meansincluding a spindle for winding a self-sustaining cop of thread. arotary shaft for supporting a supply of thread arranged relative to thespindle to produce a twist in the thread when rotated, an electricallyheated wax pot, disconnectible connections for mounting the wax pot onthe machine to rotate with the shaft, and electrical connections to thewax pot including slip rings and brushes contacting therewith to permitseparation of the wax pot from the machine.

, ERASTUS E. WINKLEY.

0F CRREGTION.

October 30, 1934. 5

ERASTUS E.- WINKLEY.

It IS hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows! Page 2.line 15, for

read pm; [me 128, claim 1, for "cap" read cop; and line 144, claim 2,strike'out the word "the"; and that the said Letters Patent should beread with these corrections therein that the same may conform to therecord of the case in the Patent Office.

Signed and sealed this 16th day of April, A. D. 1935.

(Sea!) Leslie I Frazer Acting Commissioner of Patents.

each convolution of thread going into the making of the cop in a.direction to neutralize the twist resulting from drawing thread axiallyfrom the completed cop.

4. A cop winder having, in combination, a winding spindle, a wax pot, asupport for a wound mass of supply thread, means for imparting one turnof twist to the thread for each convolution thereof wound into the cop,actuating means for these instrumentalities, and means actingautomatically to suspend the actuation when the cop has attained apredetermined size.

5. A cop winder having, in combination, winding means adapted to buildthe cop, a support for a wound mass of supply thread, and means forimparting to the thread one turn of twist for each convolution thereofwound into the cop in a direction to neutralize the twist resulting fromdrawing thread axially from the completed cop.

6. A cop winder having, in combination, a winding spindle, positivedriving means therefor, a wax pot rotatably mounted and adapted to berevolved turn for turn with the spindle through positive connectionswith the driving means, supporting means for a wound mass of supplythread upon the wax pot, and means for automatically suspending theoperation of the driving means when the cop attains a predeterminedsize.

'7. A cop winder having, in combination, a winding spindle, a wax pot, asupport for a wound mass of supply thread upon the wax pot, means forrotating the wax pot and the support to impart one turn of twist to thethread for each convolution wound onto the cop in a direction toneutralize the twist resulting from drawing thread axially from thecompleted cop, heating units in connection with the wax pot, and meansfor supplying a heating agency to such units while the wax pot isrotated. v

8. A cop winder having, in combination, winding devices including aspindle, means for supporting a wound mass of supply thread, and meansfor relatively rotating the mass of supply thread and the spindle toimpart one turn of twist to the supply thread for each revolution of thespindle in a direction to neutralize the CERTIFICATE Patent No. l, 978,850.

twist resulting from drawing thread axially from the completed cop.

9. A machine for forming thread packages having, in combination, meansincluding a spindle for winding a self-sustaining cop of thread. meansfor supporting a wound supply of thread to revolve about an axisconcentricto that about which the supply is wound and also to revolveabout an axis disposed at an angle to that of the supply, andconnections between the winding spindle and the thread supporting meansfor revolving uniformly the supply of thread about the angularlydisposed axis one turn for each complete rotation of the spindle.

10. A machine for forming thread packages having, in combination, aspindle for winding a cop of thread, means for supporting a supply ofthread, a thread guide for quickly traversing the thread as it is woundon the spindle to render the cop self-supporting, a thread tensiondevice and means for imparting uniformly 3/360" twist.

to the thread extending between the winding means and the thread tensiondevice for each complete rotation of the spindle, said thread guidebeing pressed resiliently against the spindle to compress the threadagainst the cop during winding.

11. A machine for forming thread packages having, in combination, meansincluding a spindle for winding a self-sustaining cop of thread, arotary shaft for supporting a supply of thread arranged relative to thespindle to produce a twist in the thread when rotated, an electricallyheated wax pot mounted to rotate with said shaft, and electricalconnections to the wax pct.

12. A machine for forming thread packages having, in combination, meansincluding a spindle for winding a self-sustaining cop of thread. arotary shaft for supporting a supply of thread arranged relative to thespindle to produce a twist in the thread when rotated, an electricallyheated wax pot, disconnectible connections for mounting the wax pot onthe machine to rotate with the shaft, and electrical connections to thewax pot including slip rings and brushes contacting therewith to permitseparation of the wax pot from the machine.

, ERASTUS E. WINKLEY.

0F CRREGTION.

October 30, 1934. 5

ERASTUS E.- WINKLEY.

It IS hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows! Page 2.line 15, for

read pm; [me 128, claim 1, for "cap" read cop; and line 144, claim 2,strike'out the word "the"; and that the said Letters Patent should beread with these corrections therein that the same may conform to therecord of the case in the Patent Office.

Signed and sealed this 16th day of April, A. D. 1935.

(Sea!) Leslie I Frazer Acting Commissioner of Patents.

